body, button {
  font-family: helvetica, arial, sans-serif;
  font-size: 14px;
}
body {
  width: 20em;
}
h2 img {
  display: inline-block;
}
h2 {
  font-size: 18px;
}
ul {
  padding-left: 0;
}
li {
  list-style-type: none;
}
input[type=checkbox], label {
  display: inline-block;
}
button {
  margin-top: 0.5em;
}